It said on Thursday all AirAsia flights scheduled for that day will arrive at and depart from Terminal 4.
AirAsia pointed out that departing and arriving flight schedules would not be affected by the shift.
It advised passengers departing from Terminal 4 to arrive three hours before departure. This was necessary to ensure there was sufficient time to move through the new terminal.
Passengers can reach the terminal via taxi, private hire cars, bus and personal transportation.
Those using MRT services will need to head to Terminal 2 arrival hall and take the free shuttle bus service to Terminal 4.
The shuttle bus will be available every 10 minutes for 24 hours a day, every day of the week.
AirAsia Singapore CEO Logan Velaitham said the move to the fully-automated Terminal 4 for all flights departing and arriving in Singapore was in line with AirAsia’s vision of becoming a digital airline.
At Terminal 4, AirAsia will deploy 19 check-in kiosks, 14 auto bag drop machines, two document check counters and two payment counters at Row 4, with group check-in services available at Row 5.
Passengers will be able to check-in at home via web and mobile, print their bag tags at the self-service kiosks and drop their bags at the auto bag drop machines when they come to the airport, or proceed directly to the gate if they have no check-in baggage.